Check the listing for details. Ball Knob 20mm diameter M5 thread tractor controls levers lathes tools hydraulic. Condition: New, Made in China. Listed at 4.19 USD. Check out my other items! Threaded Ball Knob Female (moulded thread): Dimensions A B C D E thread size (mm) 20 19 10 M5 Material: High impact resistant thermoplastic Standard Colour: Black Finish: Matt Finish Thread: Moulded Matt finish thermoplastic. Discounts for larger orders Any questions please ask Be sure to add me to your favourites list! Check out my other items. Ball Knobs, Scallop Knobs, Bridge handles, Star knobs, Wing knobs, Clamping handles Suitable Applications: Office furniture Medical aids and equipment Industrial machinery .Aerospace equipment Construction equipment Marine furniture Agricultural machinery Electronics enclosures Point of Sale Printing equipment Packaging and processing equipment Lighting equipment Audio equipment 8x.